What this record means
The record shows that “JACK” is a live Principal Register registration owned by Agent Oriented Software Pty Ltd., a limited company organized in Australia, and it was renewed on Jan 15 2020. The registration covers Class 009 goods described as “Artificial intelligence software, namely, software for building and running multi‑agent software systems and for decision‑making in autonomous systems,” so a similar name used for AI or related software would be the closest area of concern. The record does not give the owner control over every possible use of the word “JACK,” especially outside the narrow AI software field. The prosecution history shows the mark was approved for the Principal Register, published for opposition in September 2009, and subsequently maintained through Section 8 and Section 9 filings, with the most recent renewal acceptance on Jan 15 2020. No oppositions, cancellations or court actions appear in the supplied history. I'd treat this as a meaningful concern if you plan a name in the same AI software space.
Informational only - not legal advice.